﻿//
// Copyright 2024 Google LLC
//
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
// 
//   http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.
//

using System;

namespace Google.Solutions.Ssh.Native
{
    internal class HostKeyType
    {
        public string Name { get; }

        public HostKeyType(LIBSSH2_HOSTKEY_TYPE hostKeyType)
        {
            this.Name = hostKeyType switch
            {
                LIBSSH2_HOSTKEY_TYPE.RSA => "ssh-rsa",
                LIBSSH2_HOSTKEY_TYPE.ECDSA_256 => "ecdsa-sha2-nistp256",
                LIBSSH2_HOSTKEY_TYPE.ECDSA_384 => "ecdsa-sha2-nistp384",
                LIBSSH2_HOSTKEY_TYPE.ECDSA_521 => "ecdsa-sha2-nistp521",
                _ => throw new ArgumentException(nameof(hostKeyType))
            }; ;
        }

        public override string ToString()
        {
            return this.Name;
        }
    }
}
